#190
P-62c
Example – SrBe3O4
The Crystal Structure of SrBe3O4
Harris, L.A.; Yakel, H.L.jr.
Acta Crystallographica B (1969) 25, p1647-p1651
CIF
http://1drv.ms/1sdPq5n
BeO3 trigonal planar units or BO4 tetrahedra (green)
SrO9 tricapped trigonal prisma (blue)